Financial Calculators

Pick the Tool by the Decision You Are Making

Money tools overlap more than health ones do, and several of these answer questions that sound similar and are not. This is the shortest route from a decision to the right page.

The Three Borrowing Tools Are Not Duplicates

EMI, loan and mortgage all compute a monthly payment from the same underlying formula, and each is built around a different question.

The EMI calculator is about the anatomy of a single payment — how much of each instalment is interest, how that split moves over the term, and what a lump-sum prepayment does to it. Use it once you have a loan, or when comparing what different terms feel like month to month.

The loan calculator is about choosing between offers. Its subject is total cost of credit rather than monthly payment, because fees and quoting conventions routinely make the lower advertised rate the more expensive loan.

The mortgage calculator is about the costs the payment leaves out — taxes, insurance, maintenance — and about the term decision, where the numbers are large enough that a couple of years changes the total by six figures.

Where One Answer Feeds the Next

Several of these tools are more useful in sequence than individually.

Gross salary → Income tax calculator → take-home pay
Take-home pay → Rent calculator → what you can afford
Take-home pay → Mortgage calculator → what you can borrow
Balances and assets → Net worth calculator → where you stand

The common thread is that almost every affordability question starts from take-home pay rather than gross, while almost every lender and letting agent assesses you on gross. That gap is the single most common reason people are approved for commitments they then find uncomfortable, and it is worth running both numbers deliberately rather than accepting one.

What These Calculators Assume

Each tool models a clean version of a situation, and real circumstances add complications the arithmetic does not see.

• Tax thresholds, VAT rates, allowances and contribution rules differ by country and change regularly, often annually. Confirm any figure against your own tax authority before filing or signing.
• Loan calculations assume payments arrive on schedule and rates behave as entered. Variable rates, missed payments and fees charged mid-term all change the outcome.
• Affordability results describe arithmetic, not your life. They cannot see job security, dependants, or an expense that is coming but has not arrived.
• Nothing here is financial, tax or investment advice. These are tools for understanding a decision, not for making it on your behalf — see our disclaimer for the full position.

How These Pages Are Kept Current

Each finance calculator is checked against the published formula it implements — standard reducing-balance amortisation for loans and mortgages, the statutory basis for VAT and income tax calculations — and tested against worked examples with known answers before publication. All finance calculators on this site were last reviewed on 27 August 2026. You can read more about the process on our about page.